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51489cad MD |
1 | #ifndef _LTTNG_UST_EVENTS_H |
2 | #define _LTTNG_UST_EVENTS_H | |
8020ceb5 MD |
3 | |
4 | /* | |
51489cad | 5 | * lttng/ust-events.h |
8020ceb5 | 6 | * |
e92f3e28 | 7 | * Copyright 2010-2012 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
8020ceb5 MD |
8 | * |
9 | * Holds LTTng per-session event registry. | |
10 | * | |
e92f3e28 MD |
11 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
12 | * of this software and associated documentation files (the "Software"), to deal | |
13 | * in the Software without restriction, including without limitation the rights | |
14 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
15 | * copies of the Software, and to permit persons to whom the Software is | |
16 | * furnished to do so, subject to the following conditions: | |
a60d70e6 | 17 | * |
e92f3e28 MD |
18 | * The above copyright notice and this permission notice shall be included in |
19 | * all copies or substantial portions of the Software. | |
8020ceb5 MD |
20 | */ |
21 | ||
9f3fdbc6 | 22 | #include <urcu/list.h> |
1f18504e | 23 | #include <urcu/hlist.h> |
9f3fdbc6 | 24 | #include <stdint.h> |
4318ae1b MD |
25 | #include <lttng/ust-abi.h> |
26 | #include <lttng/ust-tracer.h> | |
2ae57758 | 27 | #include <lttng/ust-endian.h> |
20f1eee7 | 28 | #include <float.h> |
8020ceb5 | 29 | |
19d8b1b3 MD |
30 | #define LTTNG_UST_UUID_LEN 16 |
31 | ||
8020ceb5 MD |
32 | struct ltt_channel; |
33 | struct ltt_session; | |
4cfec15c | 34 | struct lttng_ust_lib_ring_buffer_ctx; |
8020ceb5 | 35 | |
37d5e202 MD |
36 | /* |
37 | * Data structures used by tracepoint event declarations, and by the | |
38 | * tracer. Those structures have padding for future extension. | |
39 | */ | |
40 | ||
c1fca457 MD |
41 | /* |
42 | * LTTng client type enumeration. Used by the consumer to map the | |
43 | * callbacks from its own address space. | |
44 | */ | |
45 | enum lttng_client_types { | |
46 | LTTNG_CLIENT_METADATA = 0, | |
47 | LTTNG_CLIENT_DISCARD = 1, | |
48 | LTTNG_CLIENT_OVERWRITE = 2, | |
49 | LTTNG_NR_CLIENT_TYPES, | |
50 | }; | |
51 | ||
8020ceb5 MD |
52 | /* Type description */ |
53 | ||
54 | /* Update the astract_types name table in lttng-types.c along with this enum */ | |
55 | enum abstract_types { | |
56 | atype_integer, | |
57 | atype_enum, | |
58 | atype_array, | |
59 | atype_sequence, | |
60 | atype_string, | |
20f1eee7 | 61 | atype_float, |
8020ceb5 MD |
62 | NR_ABSTRACT_TYPES, |
63 | }; | |
64 | ||
65 | /* Update the string_encodings name table in lttng-types.c along with this enum */ | |
66 | enum lttng_string_encodings { | |
67 | lttng_encode_none = 0, | |
68 | lttng_encode_UTF8 = 1, | |
69 | lttng_encode_ASCII = 2, | |
70 | NR_STRING_ENCODINGS, | |
71 | }; | |
72 | ||
37d5e202 | 73 | #define LTTNG_UST_ENUM_ENTRY_PADDING 16 |
8020ceb5 MD |
74 | struct lttng_enum_entry { |
75 | unsigned long long start, end; /* start and end are inclusive */ | |
76 | const char *string; | |
37d5e202 | 77 | char padding[LTTNG_UST_ENUM_ENTRY_PADDING]; |
8020ceb5 MD |
78 | }; |
79 | ||
80 | #define __type_integer(_type, _byte_order, _base, _encoding) \ | |
81 | { \ | |
82 | .atype = atype_integer, \ | |
83 | .u.basic.integer = \ | |
84 | { \ | |
85 | .size = sizeof(_type) * CHAR_BIT, \ | |
1dbfff0c MD |
86 | .alignment = lttng_alignof(_type) * CHAR_BIT, \ |
87 | .signedness = lttng_is_signed_type(_type), \ | |
8d1d746f | 88 | .reverse_byte_order = _byte_order != BYTE_ORDER, \ |
8020ceb5 MD |
89 | .base = _base, \ |
90 | .encoding = lttng_encode_##_encoding, \ | |
91 | }, \ | |
92 | } \ | |
93 | ||
37d5e202 | 94 | #define LTTNG_UST_INTEGER_TYPE_PADDING 24 |
8020ceb5 MD |
95 | struct lttng_integer_type { |
96 | unsigned int size; /* in bits */ | |
97 | unsigned short alignment; /* in bits */ | |
98 | unsigned int signedness:1; | |
99 | unsigned int reverse_byte_order:1; | |
100 | unsigned int base; /* 2, 8, 10, 16, for pretty print */ | |
101 | enum lttng_string_encodings encoding; | |
37d5e202 | 102 | char padding[LTTNG_UST_INTEGER_TYPE_PADDING]; |
8020ceb5 MD |
103 | }; |
104 | ||
d3ed854b MD |
105 | /* |
106 | * Only float and double are supported. long double is not supported at | |
107 | * the moment. | |
108 | */ | |
20f1eee7 MD |
109 | #define _float_mant_dig(_type) \ |
110 | (sizeof(_type) == sizeof(float) ? FLT_MANT_DIG \ | |
111 | : (sizeof(_type) == sizeof(double) ? DBL_MANT_DIG \ | |
d3ed854b | 112 | : 0)) |
20f1eee7 MD |
113 | |
114 | #define __type_float(_type) \ | |
115 | { \ | |
116 | .atype = atype_float, \ | |
117 | .u.basic._float = \ | |
118 | { \ | |
119 | .exp_dig = sizeof(_type) * CHAR_BIT \ | |
120 | - _float_mant_dig(_type), \ | |
121 | .mant_dig = _float_mant_dig(_type), \ | |
1dbfff0c | 122 | .alignment = lttng_alignof(_type) * CHAR_BIT, \ |
ad496c21 | 123 | .reverse_byte_order = BYTE_ORDER != FLOAT_WORD_ORDER, \ |
20f1eee7 MD |
124 | }, \ |
125 | } \ | |
126 | ||
37d5e202 | 127 | #define LTTNG_UST_FLOAT_TYPE_PADDING 24 |
20f1eee7 MD |
128 | struct lttng_float_type { |
129 | unsigned int exp_dig; /* exponent digits, in bits */ | |
130 | unsigned int mant_dig; /* mantissa digits, in bits */ | |
131 | unsigned short alignment; /* in bits */ | |
132 | unsigned int reverse_byte_order:1; | |
37d5e202 | 133 | char padding[LTTNG_UST_FLOAT_TYPE_PADDING]; |
20f1eee7 MD |
134 | }; |
135 | ||
37d5e202 | 136 | #define LTTNG_UST_BASIC_TYPE_PADDING 128 |
8020ceb5 MD |
137 | union _lttng_basic_type { |
138 | struct lttng_integer_type integer; | |
139 | struct { | |
140 | const char *name; | |
141 | } enumeration; | |
142 | struct { | |
143 | enum lttng_string_encodings encoding; | |
144 | } string; | |
20f1eee7 | 145 | struct lttng_float_type _float; |
37d5e202 | 146 | char padding[LTTNG_UST_BASIC_TYPE_PADDING]; |
8020ceb5 MD |
147 | }; |
148 | ||
149 | struct lttng_basic_type { | |
150 | enum abstract_types atype; | |
151 | union { | |
152 | union _lttng_basic_type basic; | |
153 | } u; | |
154 | }; | |
155 | ||
37d5e202 | 156 | #define LTTNG_UST_TYPE_PADDING 128 |
8020ceb5 MD |
157 | struct lttng_type { |
158 | enum abstract_types atype; | |
159 | union { | |
160 | union _lttng_basic_type basic; | |
161 | struct { | |
162 | struct lttng_basic_type elem_type; | |
163 | unsigned int length; /* num. elems. */ | |
164 | } array; | |
165 | struct { | |
166 | struct lttng_basic_type length_type; | |
167 | struct lttng_basic_type elem_type; | |
168 | } sequence; | |
37d5e202 | 169 | char padding[LTTNG_UST_TYPE_PADDING]; |
8020ceb5 MD |
170 | } u; |
171 | }; | |
172 | ||
37d5e202 | 173 | #define LTTNG_UST_ENUM_TYPE_PADDING 24 |
8020ceb5 MD |
174 | struct lttng_enum { |
175 | const char *name; | |
176 | struct lttng_type container_type; | |
177 | const struct lttng_enum_entry *entries; | |
23c8854a | 178 | unsigned int len; |
37d5e202 | 179 | char padding[LTTNG_UST_ENUM_TYPE_PADDING]; |
8020ceb5 MD |
180 | }; |
181 | ||
182 | /* Event field description */ | |
183 | ||
37d5e202 | 184 | #define LTTNG_UST_EVENT_FIELD_PADDING 32 |
8020ceb5 MD |
185 | struct lttng_event_field { |
186 | const char *name; | |
187 | struct lttng_type type; | |
37d5e202 | 188 | char padding[LTTNG_UST_EVENT_FIELD_PADDING]; |
8020ceb5 MD |
189 | }; |
190 | ||
37d5e202 | 191 | #define LTTNG_UST_CTX_FIELD_PADDING 40 |
8020ceb5 MD |
192 | struct lttng_ctx_field { |
193 | struct lttng_event_field event_field; | |
194 | size_t (*get_size)(size_t offset); | |
195 | void (*record)(struct lttng_ctx_field *field, | |
4cfec15c | 196 | struct lttng_ust_lib_ring_buffer_ctx *ctx, |
8020ceb5 MD |
197 | struct ltt_channel *chan); |
198 | union { | |
37d5e202 | 199 | char padding[LTTNG_UST_CTX_FIELD_PADDING]; |
8020ceb5 MD |
200 | } u; |
201 | void (*destroy)(struct lttng_ctx_field *field); | |
202 | }; | |
203 | ||
37d5e202 | 204 | #define LTTNG_UST_CTX_PADDING 24 |
8020ceb5 MD |
205 | struct lttng_ctx { |
206 | struct lttng_ctx_field *fields; | |
207 | unsigned int nr_fields; | |
208 | unsigned int allocated_fields; | |
37d5e202 MD |
209 | char padding[LTTNG_UST_CTX_PADDING]; |
210 | }; | |
211 | ||
212 | #define LTTNG_UST_EVENT_DESC_PADDING 40 | |
213 | struct lttng_event_desc { | |
214 | const char *name; | |
fbdeb5ec | 215 | void (*probe_callback)(void); |
37d5e202 MD |
216 | const struct lttng_event_ctx *ctx; /* context */ |
217 | const struct lttng_event_field *fields; /* event payload */ | |
218 | unsigned int nr_fields; | |
219 | const int **loglevel; | |
68755429 | 220 | const char *signature; /* Argument types/names received */ |
37d5e202 MD |
221 | char padding[LTTNG_UST_EVENT_DESC_PADDING]; |
222 | }; | |
223 | ||
224 | #define LTTNG_UST_PROBE_DESC_PADDING 40 | |
225 | struct lttng_probe_desc { | |
226 | const char *provider; | |
227 | const struct lttng_event_desc **event_desc; | |
228 | unsigned int nr_events; | |
229 | struct cds_list_head head; /* chain registered probes */ | |
230 | char padding[LTTNG_UST_PROBE_DESC_PADDING]; | |
8020ceb5 MD |
231 | }; |
232 | ||
37d5e202 MD |
233 | /* Data structures used by the tracer. */ |
234 | ||
e6c12e3d MD |
235 | /* |
236 | * Entry describing a per-session active wildcard, along with the event | |
237 | * attribute and channel information configuring the events that need to | |
238 | * be enabled. | |
239 | */ | |
240 | struct session_wildcard { | |
241 | struct ltt_channel *chan; | |
242 | struct lttng_ctx *ctx; /* TODO */ | |
243 | struct lttng_ust_event event_param; | |
244 | struct cds_list_head events; /* list of events enabled */ | |
245 | struct cds_list_head list; /* per-session list of wildcards */ | |
51c5df09 | 246 | struct cds_list_head session_list; /* node of session wildcard list */ |
e6c12e3d | 247 | struct wildcard_entry *entry; |
2d78951a | 248 | struct lttng_ust_filter_bytecode *filter_bytecode; |
e6c12e3d MD |
249 | unsigned int enabled:1; |
250 | }; | |
251 | ||
252 | /* | |
253 | * Entry describing an active wildcard (per name) for all sessions. | |
254 | */ | |
255 | struct wildcard_entry { | |
51c5df09 | 256 | /* node of global wildcards list */ |
e6c12e3d | 257 | struct cds_list_head list; |
51c5df09 | 258 | /* head of session list to which this wildcard apply */ |
e6c12e3d | 259 | struct cds_list_head session_list; |
457a6b58 | 260 | enum lttng_ust_loglevel_type loglevel_type; |
2d78951a | 261 | struct lttng_ust_filter_bytecode *filter_bytecode; |
457a6b58 | 262 | int loglevel; |
e6c12e3d MD |
263 | char name[0]; |
264 | }; | |
265 | ||
c8fcf224 MD |
266 | struct tp_list_entry { |
267 | struct lttng_ust_tracepoint_iter tp; | |
268 | struct cds_list_head head; | |
269 | }; | |
270 | ||
271 | struct lttng_ust_tracepoint_list { | |
272 | struct tp_list_entry *iter; | |
273 | struct cds_list_head head; | |
8020ceb5 MD |
274 | }; |
275 | ||
06d4f27e MD |
276 | struct tp_field_list_entry { |
277 | struct lttng_ust_field_iter field; | |
278 | struct cds_list_head head; | |
279 | }; | |
280 | ||
281 | struct lttng_ust_field_list { | |
282 | struct tp_field_list_entry *iter; | |
283 | struct cds_list_head head; | |
284 | }; | |
285 | ||
8165c8da | 286 | struct ust_pending_probe; |
fbdeb5ec | 287 | struct ltt_event; |
2d78951a | 288 | struct lttng_ust_filter_bytecode; |
8165c8da | 289 | |
8020ceb5 MD |
290 | /* |
291 | * ltt_event structure is referred to by the tracing fast path. It must be | |
292 | * kept small. | |
293 | */ | |
294 | struct ltt_event { | |
295 | unsigned int id; | |
296 | struct ltt_channel *chan; | |
976fe9ea | 297 | int enabled; |
8020ceb5 | 298 | const struct lttng_event_desc *desc; |
1ddfd641 MD |
299 | int (*filter)(void *filter_data, const char *filter_stack_data); |
300 | void *filter_data; | |
8020ceb5 | 301 | struct lttng_ctx *ctx; |
9f3fdbc6 | 302 | enum lttng_ust_instrumentation instrumentation; |
8020ceb5 | 303 | union { |
8020ceb5 | 304 | } u; |
9f3fdbc6 | 305 | struct cds_list_head list; /* Event list */ |
e6c12e3d | 306 | struct cds_list_head wildcard_list; /* Event list for wildcard */ |
8165c8da | 307 | struct ust_pending_probe *pending_probe; |
2d78951a | 308 | struct lttng_ust_filter_bytecode *filter_bytecode; |
7c2caf2b | 309 | unsigned int metadata_dumped:1; |
8020ceb5 MD |
310 | }; |
311 | ||
8d8a24c8 | 312 | struct channel; |
38fae1d3 | 313 | struct lttng_ust_shm_handle; |
8d8a24c8 | 314 | |
8020ceb5 | 315 | struct ltt_channel_ops { |
1d498196 | 316 | struct ltt_channel *(*channel_create)(const char *name, |
8020ceb5 MD |
317 | void *buf_addr, |
318 | size_t subbuf_size, size_t num_subbuf, | |
319 | unsigned int switch_timer_interval, | |
193183fb | 320 | unsigned int read_timer_interval, |
ef9ff354 MD |
321 | int **shm_fd, int **wait_fd, |
322 | uint64_t **memory_map_size, | |
d028eddb | 323 | struct ltt_channel *chan_priv_init); |
1d498196 | 324 | void (*channel_destroy)(struct ltt_channel *ltt_chan); |
4cfec15c | 325 | struct lttng_ust_lib_ring_buffer *(*buffer_read_open)(struct channel *chan, |
38fae1d3 | 326 | struct lttng_ust_shm_handle *handle, |
ef9ff354 MD |
327 | int **shm_fd, int **wait_fd, |
328 | uint64_t **memory_map_size); | |
4cfec15c | 329 | void (*buffer_read_close)(struct lttng_ust_lib_ring_buffer *buf, |
38fae1d3 | 330 | struct lttng_ust_shm_handle *handle); |
4cfec15c | 331 | int (*event_reserve)(struct lttng_ust_lib_ring_buffer_ctx *ctx, |
8020ceb5 | 332 | uint32_t event_id); |
4cfec15c MD |
333 | void (*event_commit)(struct lttng_ust_lib_ring_buffer_ctx *ctx); |
334 | void (*event_write)(struct lttng_ust_lib_ring_buffer_ctx *ctx, const void *src, | |
8020ceb5 MD |
335 | size_t len); |
336 | /* | |
337 | * packet_avail_size returns the available size in the current | |
338 | * packet. Note that the size returned is only a hint, since it | |
339 | * may change due to concurrent writes. | |
340 | */ | |
1d498196 | 341 | size_t (*packet_avail_size)(struct channel *chan, |
38fae1d3 | 342 | struct lttng_ust_shm_handle *handle); |
9f3fdbc6 MD |
343 | //wait_queue_head_t *(*get_reader_wait_queue)(struct channel *chan); |
344 | //wait_queue_head_t *(*get_hp_wait_queue)(struct channel *chan); | |
8020ceb5 MD |
345 | int (*is_finalized)(struct channel *chan); |
346 | int (*is_disabled)(struct channel *chan); | |
38fae1d3 | 347 | int (*flush_buffer)(struct channel *chan, struct lttng_ust_shm_handle *handle); |
8020ceb5 MD |
348 | }; |
349 | ||
350 | struct ltt_channel { | |
a3f61e7f MD |
351 | /* |
352 | * The pointers located in this private data are NOT safe to be | |
353 | * dereferenced by the consumer. The only operations the | |
354 | * consumer process is designed to be allowed to do is to read | |
355 | * and perform subbuffer flush. | |
356 | */ | |
8020ceb5 | 357 | struct channel *chan; /* Channel buffers */ |
976fe9ea | 358 | int enabled; |
8020ceb5 MD |
359 | struct lttng_ctx *ctx; |
360 | /* Event ID management */ | |
361 | struct ltt_session *session; | |
0a42beb6 | 362 | int objd; /* Object associated to channel */ |
8020ceb5 | 363 | unsigned int free_event_id; /* Next event ID to allocate */ |
8165c8da | 364 | unsigned int used_event_id; /* Max allocated event IDs */ |
9f3fdbc6 | 365 | struct cds_list_head list; /* Channel list */ |
8020ceb5 MD |
366 | struct ltt_channel_ops *ops; |
367 | int header_type; /* 0: unset, 1: compact, 2: large */ | |
38fae1d3 | 368 | struct lttng_ust_shm_handle *handle; /* shared-memory handle */ |
7c2caf2b | 369 | unsigned int metadata_dumped:1; |
a3f61e7f MD |
370 | |
371 | /* Channel ID, available for consumer too */ | |
372 | unsigned int id; | |
373 | /* Copy of session UUID for consumer (availability through shm) */ | |
19d8b1b3 | 374 | unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */ |
8020ceb5 MD |
375 | }; |
376 | ||
377 | struct ltt_session { | |
378 | int active; /* Is trace session active ? */ | |
379 | int been_active; /* Has trace session been active ? */ | |
0a42beb6 | 380 | int objd; /* Object associated to session */ |
8020ceb5 | 381 | struct ltt_channel *metadata; /* Metadata channel */ |
9f3fdbc6 MD |
382 | struct cds_list_head chan; /* Channel list head */ |
383 | struct cds_list_head events; /* Event list head */ | |
e6c12e3d | 384 | struct cds_list_head wildcards; /* Wildcard list head */ |
9f3fdbc6 | 385 | struct cds_list_head list; /* Session list */ |
8020ceb5 | 386 | unsigned int free_chan_id; /* Next chan ID to allocate */ |
19d8b1b3 | 387 | unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */ |
7c2caf2b | 388 | unsigned int metadata_dumped:1; |
8020ceb5 MD |
389 | }; |
390 | ||
391 | struct ltt_transport { | |
392 | char *name; | |
9f3fdbc6 | 393 | struct cds_list_head node; |
8020ceb5 MD |
394 | struct ltt_channel_ops ops; |
395 | }; | |
396 | ||
397 | struct ltt_session *ltt_session_create(void); | |
976fe9ea MD |
398 | int ltt_session_enable(struct ltt_session *session); |
399 | int ltt_session_disable(struct ltt_session *session); | |
8020ceb5 MD |
400 | void ltt_session_destroy(struct ltt_session *session); |
401 | ||
402 | struct ltt_channel *ltt_channel_create(struct ltt_session *session, | |
403 | const char *transport_name, | |
404 | void *buf_addr, | |
405 | size_t subbuf_size, size_t num_subbuf, | |
406 | unsigned int switch_timer_interval, | |
193183fb | 407 | unsigned int read_timer_interval, |
ef9ff354 MD |
408 | int **shm_fd, int **wait_fd, |
409 | uint64_t **memory_map_size, | |
d028eddb | 410 | struct ltt_channel *chan_priv_init); |
8020ceb5 MD |
411 | struct ltt_channel *ltt_global_channel_create(struct ltt_session *session, |
412 | int overwrite, void *buf_addr, | |
413 | size_t subbuf_size, size_t num_subbuf, | |
414 | unsigned int switch_timer_interval, | |
193183fb | 415 | unsigned int read_timer_interval, |
ef9ff354 MD |
416 | int **shm_fd, int **wait_fd, |
417 | uint64_t **memory_map_size); | |
8020ceb5 | 418 | |
576599a0 MD |
419 | int ltt_event_create(struct ltt_channel *chan, |
420 | struct lttng_ust_event *event_param, | |
576599a0 | 421 | struct ltt_event **event); |
8020ceb5 | 422 | |
976fe9ea MD |
423 | int ltt_channel_enable(struct ltt_channel *channel); |
424 | int ltt_channel_disable(struct ltt_channel *channel); | |
425 | int ltt_event_enable(struct ltt_event *event); | |
426 | int ltt_event_disable(struct ltt_event *event); | |
427 | ||
8020ceb5 MD |
428 | void ltt_transport_register(struct ltt_transport *transport); |
429 | void ltt_transport_unregister(struct ltt_transport *transport); | |
430 | ||
4b4de73e | 431 | void synchronize_trace(void); |
8020ceb5 MD |
432 | |
433 | int ltt_probe_register(struct lttng_probe_desc *desc); | |
434 | void ltt_probe_unregister(struct lttng_probe_desc *desc); | |
8165c8da | 435 | int pending_probe_fix_events(const struct lttng_event_desc *desc); |
8020ceb5 MD |
436 | const struct lttng_event_desc *ltt_event_get(const char *name); |
437 | void ltt_event_put(const struct lttng_event_desc *desc); | |
438 | int ltt_probes_init(void); | |
439 | void ltt_probes_exit(void); | |
8173ec7c MD |
440 | int lttng_find_context(struct lttng_ctx *ctx, const char *name); |
441 | struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx_p); | |
442 | void lttng_remove_context_field(struct lttng_ctx **ctx_p, | |
8020ceb5 MD |
443 | struct lttng_ctx_field *field); |
444 | void lttng_destroy_context(struct lttng_ctx *ctx); | |
3b402b40 | 445 | int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx); |
c1ef86f0 | 446 | int lttng_add_vpid_to_ctx(struct lttng_ctx **ctx); |
8173ec7c | 447 | int lttng_add_pthread_id_to_ctx(struct lttng_ctx **ctx); |
4847e9bb | 448 | int lttng_add_procname_to_ctx(struct lttng_ctx **ctx); |
a93bfc45 | 449 | void lttng_context_vtid_reset(void); |
c1ef86f0 | 450 | void lttng_context_vpid_reset(void); |
9f3fdbc6 | 451 | |
5a821cd6 MD |
452 | extern const struct lttng_ust_lib_ring_buffer_client_cb *lttng_client_callbacks_metadata; |
453 | extern const struct lttng_ust_lib_ring_buffer_client_cb *lttng_client_callbacks_discard; | |
454 | extern const struct lttng_ust_lib_ring_buffer_client_cb *lttng_client_callbacks_overwrite; | |
c1fca457 | 455 | |
c1fca457 MD |
456 | struct ltt_transport *ltt_transport_find(const char *name); |
457 | ||
c8fcf224 MD |
458 | int ltt_probes_get_event_list(struct lttng_ust_tracepoint_list *list); |
459 | void ltt_probes_prune_event_list(struct lttng_ust_tracepoint_list *list); | |
460 | struct lttng_ust_tracepoint_iter * | |
461 | lttng_ust_tracepoint_list_get_iter_next(struct lttng_ust_tracepoint_list *list); | |
06d4f27e MD |
462 | int ltt_probes_get_field_list(struct lttng_ust_field_list *list); |
463 | void ltt_probes_prune_field_list(struct lttng_ust_field_list *list); | |
464 | struct lttng_ust_field_iter * | |
465 | lttng_ust_field_list_get_iter_next(struct lttng_ust_field_list *list); | |
c8fcf224 | 466 | |
e6c12e3d MD |
467 | int ltt_wildcard_enable(struct session_wildcard *wildcard); |
468 | int ltt_wildcard_disable(struct session_wildcard *wildcard); | |
469 | int ltt_wildcard_create(struct ltt_channel *chan, | |
470 | struct lttng_ust_event *event_param, | |
471 | struct session_wildcard **sl); | |
457a6b58 MD |
472 | int ltt_loglevel_match(const struct lttng_event_desc *desc, |
473 | enum lttng_ust_loglevel_type req_type, | |
474 | int req_loglevel); | |
475 | void ltt_probes_create_wildcard_events(struct wildcard_entry *entry, | |
476 | struct session_wildcard *wildcard); | |
2d78951a MD |
477 | int lttng_filter_event_attach_bytecode(struct ltt_event *event, |
478 | struct lttng_ust_filter_bytecode *filter); | |
479 | int lttng_filter_wildcard_attach_bytecode(struct session_wildcard *wildcard, | |
480 | struct lttng_ust_filter_bytecode *filter); | |
481 | void lttng_filter_event_link_bytecode(struct ltt_event *event, | |
482 | struct lttng_ust_filter_bytecode *filter_bytecode); | |
483 | void lttng_filter_wildcard_link_bytecode(struct session_wildcard *wildcard); | |
e6c12e3d | 484 | |
51489cad | 485 | #endif /* _LTTNG_UST_EVENTS_H */ |